Tests/subset/data/expect_opbd_1.ttx

<?xml version="1.0" encoding="UTF-8"?>
<ttFont>

  <opbd>
    <Version value="0x00010000"/>
    <OpticalBounds Format="1">
      <OpticalBoundsPoints>
        <Lookup glyph="A">
          <Left value="3"/>
          <Top value="4"/>
          <Right value="5"/>
          <Bottom value="6"/>
        </Lookup>
      </OpticalBoundsPoints>
    </OpticalBounds>
  </opbd>
  
</ttFont>